TY - JOUR AU - Ning Lu AU - Fei He AU - Shu-Fang Li TI - Fixed point theorem for question of set-valued quasi-contraction JO - Filomat PY - 2022 SP - 6777 VL - 36 IS - 19 UR - http://geodesic.mathdoc.fr/articles/10.2298/FIL2219777L/ DO - 10.2298/FIL2219777L LA - en ID - 10_2298_FIL2219777L ER -